What do the following words have in common?

OVER
LOVE
INCH
LOSE
EASE

HINT:
The same letter, placed in the same position, will change each word into a new one.

Answer:

Each word can be preceded by C.

COVER / CLOVE / CINCH / CLOSE / CEASE

Credit: Chicago Tribune Crossword
Arlan and Linda Bushman (Idea) -   C-  [C Minus]